Polonium

Metalloid

Symbol: Po

Atomic Number: 84

Standard State: Solid

Atomic Mass: 208.9824

Electron Configuration: [Xe]6s2 4f14 5d10 6p4

Electronegativity: 2

Atomic Radius: 197

Ionization Energy: 8.417

Melting Point: 527

Boiling Point: 1235

Density: 9.32

Year Discovered: 1898